Emerson 8712E manual Installation Procedures, Environmental Considerations, Mount the Transmitter

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Quick Installation Guide

00825-0100-4664, Rev BB January 2013

Rosemount 8712 / 8700 Series

Environmental Considerations

To ensure maximum transmitter life, avoid excessive heat and vibration. Typical problem areas include:

Warm-climate installations in direct sunlight

Outdoor installations in cold climates

Remote mounted transmitters may be installed in the control room to protect the electronics from the harsh environment and provide easy access for configuration or service.

Remotely mounted Rosemount 8712 transmitters require external power so there must be access to a suitable power source.

Installation Procedures

Rosemount 8712 installation includes both detailed mechanical and electrical installation procedures.

Mount the Transmitter

At a remote site the transmitter may be mounted on a pipe up to two inches in diameter or against a flat surface.

Pipe Mounting

To mount the transmitter on a pipe:

1.Attach the mounting plate to the pipe using the mounting hardware.

2.Attach the 8712 to the mounting plate using the mounting screws.

Identify Options and Configurations

The standard application of the 8712 includes a 4–20 mA output and control of the sensor coils and electrodes. Other applications may require one or more of the following configurations or options:

Multidrop Communications

Digital Output

Digital Input

Pulse Output

Additional options may apply. Be sure to identify those options and configurations that apply to your situation, and keep a list of them nearby for consideration during the installation and configuration procedures.

Hardware Jumpers/Switches

The 8712 electronics board is equipped with three user-selectable hardware switches. These switches set the Failure Alarm Mode, Internal/External Analog Power, and Transmitter Security. The standard configuration for these switches when shipped from the factory are as follows:

Failure Alarm Mode:

HIGH

Internal/External Analog Power:

INTERNAL

Transmitter Security:

OFF

Changing Hardware Switch Settings

In most cases, it is not necessary to change the setting of the hardware switches. If you need to change the switch settings, complete the steps outlined in the manual.

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Contents Quick Installation Guide Private Limited Management Asia PacificMechanical Considerations PRE-INSTALLATION109 Dimensions are in inches millimeters12.02 305Identify Options and Configurations Installation ProceduresHardware Jumpers/Switches Environmental ConsiderationsElectrical Considerations HandlingUpstream/Downstream Piping MountingFlow Direction Sensor OrientationFlow Flanged Sensors InstallationGaskets Flange BoltsPound-feet Size ClassCode Newton Code Meter PTFE/ETFE liner PN10 SizeNewton Polyurethane, Linatex, Adiprene and Neoprene Liners Size Nominal Sensor Size Wafer SensorsAlignment Rosemount Alignment Spacer Table Line Size Dash No Pound-feet Newton-meter Sanitary SensorsAlignment and Bolting Process Grounding Options Type of Pipe GroundingLining StrapsGrounding with Grounding Electrode Power Outputs WiringCoil Drive and Electrode Cables Power Outputs Conduit Ports and ConnectionsRemote Mount Cable Requirements and Preparation Transmitter to Sensor WiringTransmitter Terminal Sensor Terminal Wire Gauge Wire Color Wiring the Transmitter to the SensorDescription Part NumberRemote Mount Wiring Diagrams Internal Power Source Connect the 4-20 mA Analog SignalExternal Power Source Cabling considerationsSupply Wire Requirements Powering the TransmitterInstallation Category DisconnectsFuse 8712E Power SupplyAC Ground or DC Ground Transmitter Power Cable Basic Setup Local Operator Interface Basic SetupFunction Fast Keys Process Variables PV ReviewApproved Manufacturing Locations Product CertificationsEuropean Directive Information International CertificatesSpecial Conditions for Safe Use European Certifications N1 Atex Type nInternational Certifications N7 IECEx Type nSensor Approval Information Maximum Process Meter Size Inches Maximum Ambient TemperatureRosemount 8705 and 8711 Sensors EC Declaration of Conformity Schedule